Which product is obtained in the manufacture of soap from oils:

A. Above 20 kHz
B. Above 20,000 kHz
C. Below 20 kHz
D. Below 02 kHz

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin K

The ozone layer is at height of________kilometers from the surface of the Earth?

A. 10 to 20
B. 20 to 30
C. 30 to 40
D. 40 to 50

A. –89.2 °C
B. –86.2 °C
C. –83.2 °C
D. –92.2 °C

A. Jupiter, Mars
B. Mercury, Saturn
C. Venus, Uranus
D. Neptune, Earth